What is a collective noun for tourists?

There isn't a single, widely accepted collective noun specifically for tourists. However, here are some options depending on the context:

General:

* A throng of tourists

* A group of tourists

* A party of tourists

* A bevy of tourists

* A swarm of tourists (often used in a humorous or negative context)

More specific:

* A cruise of tourists (for a group of tourists on a cruise ship)

* A tour of tourists (for a group of tourists on a guided tour)

* A horde of tourists (used if the group is large and overwhelming)

Figurative:

* A tide of tourists (emphasizing the sheer volume)

* A ripple of tourists (emphasizing movement)

Ultimately, the best collective noun will depend on the specific situation and the tone you want to convey.